Financial instruments - classification - Reverse repos and repos (Details) - GBP (£) £ in Millions	Jun. 30, 2023	Dec. 31, 2022
Bank deposits
Financial instruments
Repos	£ 2,231	£ 1,446
Customer deposits
Financial instruments
Repos	9,322	9,829
Trading liabilities
Financial instruments
Repos	27,808	23,740
Trading assets
Financial instruments
Reverse repos	21,347	21,537
Loans to banks - amortised cost
Financial instruments
Reverse repos	280	277
Loans to customers - amortised cost
Financial instruments
Reverse repos	£ 21,420	£ 19,750

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- Definition

The amount of instruments sold with the intent to reacquire in repurchase agreements and cash collateral on securities lent.

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Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The amount of instruments purchased for resale in reverse repurchase agreements and cash collateral on securities borrowed. [Refer: Repurchase agreements and cash collateral on securities lent]

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